Fuel valve for internal-combustion engines



April 28, 1925. 1,536,003

' E. HERKT FUEL VALVE FOR INTERNATJ COMBUSTION ENGINES Filed Oct 26, 1921 lll lllll Patented Apr. 28, 1925.

UNIT

PATENT OFFICE.

ERNST HERK'I, OF KIEL-HASSEE, GERll/LANY, ASSIGNOR T0 FRIED. KRUPP AKTIEN- GESELLSCHAIT GERMANIAWERFT, 0F KIEL-GAARDEN, GERMANY.

FUEL VALVE FOR INTERNAL-COMBUSTION ENGINES.

Application filed October 26, 1921. Serial No. 510,468.

To all whom it may concern:

Be it known that 1, Elmer l-lnnn'r, residing at Kiel-lilassee, Germany, a citizen of the German Republic, have invented a certain new and useful Improvement in Fuel Valves for Internal-Combustion Engines, of which the following is a specification.

This invention relates to the fuel valves for internal combustion engines, in which the valve stem is guided at two points. Heretolore such valve stem was guided both in a valve block set into the cylinder cover, and also in a superstrueture, which holds down the valve block forming the first stem guide by means of a flange cast integral with it.

The object of this invention is to provide alined guidcways and this is accomplished by placing all the guides of the valve stem in one common casing, which is adjust-ably connected with the cylinder cover by means of a separate flange member In the drawings:

Fig. 1 is a similar view of a valve constructed in accordance with this invention, and

Fig. 2 is a horizontal section on line of Fig. 1.

Referring now to the drawings a constructional example oi": this invention will be described.

The one-piece valve casing D contains the lower guide for the stem in its part lying below the point 01 eiig 'agen'ient of the valve lever E, and in its part lying above said point of engagen'ient, the upper guide for said stem. The middle part d of the casing l) is fork-shaped, as usual, to permit the valve lever E to engage the stem. The casing lits into the cover of the engine with a cone-shaped part (5, and is secured in place by means of a separate flange F which can be introduced between the fork portions of the casing D (see Fig. 1), and by two bolts G engaging the flange and the cover, the flange being pressed against an abutment face d of the lower part of the casing 1). The packing for the valve stem is preferably lodged in the loose flange F it self.

With this construction, if the cover screws are tightened unequally, there will not be any bending or jamming of the valve stem, since the two guides in the upper and lower casing parts maintain their axial alignment even if the casing stands at an angle. Also, since the flange F is a separate part, it is possible to make it of extra strong material, for example, steel, whereby a much greater durability is attained than was here toiore possible.

Claims:

1. In a stem valve for engines, a casing forming a multiple guide for a single valve stem and a separate member engaging said casing and secured to the engine for holding said casing in place.

2. In a stem valve for engines having its single stem double guided, a casing having two guideways for said stem and a separate flange member engaging said casing and secured to the engine for holding said casing in place. i

3. A t'uel stem valve for engines having a doubly guided stem, a casing formed with two aligned guideways for said stem and a separable flange member engaging said casing and bolted to said engine for rig; idly securing said casing in place.

4:. In. a stem valve for engines having a doubly guided stem, a casing formed with aligned guide-ways for said stem, a separable flanged member engaging said casing and bolted to the engine for holding said casing in place thereon, and means contained within said flanged member for packing said stem.

The foregoing specification signed at.

ERNST HERKT. 

